| Description: | If you look at the epithelium carefully, you will see that there are
three main types of cells present. The ciliated cells have elongate
nuclei, pink cytoplasm and a hint of cilia at the apical surfaces. The
presence of goblet cells is inferred by occasional grey-blue spots at
the surface. Several Clara cells are present on the leftt side of the
picture. They are more cuboidal in shape, have round nuclei and clear
cytoplasm. There does not seem to be a circular band of smooth muscle
cells forming the muscularis mucosae. Question: Is the muscularis
mucosae really missing in this specimen? PK1586. S1. Original mag. 100
x. H&E. Clara cells. Bronchiole. Lung. Respiratory System. |